Using A Catalyst Patents (Class 60/299)
  • Patent number: 11358095
    Abstract: An electrochemical reactor is arranged inside an exhaust passage of an internal combustion engine and is provided with a plurality of groups of cells. Each group of cell has a plurality of cells, each cell has an ion conducting solid electrolyte layer, and an anode layer and cathode layer arranged on a surface of the solid electrolyte layer. Each group of cells is configured so that all of the exhaust gas flows into passages defined by cells configuring the group of cells and so that both of the anode layers and the cathode layers are exposed to each passage. The plurality of groups of cells are arranged aligned in a direction of flow of exhaust gas and different groups of cells are connected to a power source in parallel with each other.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 14, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keishi Takada, Tetsuya Sakuma, Yasumasa Notake
  • Patent number: 11325067
    Abstract: An electrochemical reactor is arranged inside an exhaust passage of an internal combustion engine and is provided with a plurality of groups of cells. Each group of cell has a plurality of cells, each cell has an ion conducting solid electrolyte layer, and an anode layer and cathode layer arranged on a surface of the solid electrolyte layer. Each group of cells is configured so that all of the exhaust gas flows into passages defined by cells configuring the group of cells and so that both of the anode layers and the cathode layers are exposed to each passage. The plurality of groups of cells are arranged aligned in a direction of flow of exhaust gas and different groups of cells are connected to a power source in parallel with each other.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 10, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keishi Takada, Tetsuya Sakuma, Yasumasa Notake
  • Patent number: 11273404
    Abstract: A porous composite includes a porous base material and a porous collection layer formed on the base material. The collection layer has a thickness greater than or equal to 6 ?m. The collection layer has a plurality of large pores, each exposing the surface of the base material. A sum of areas of exposed regions of the base material that are each exposed from each large pore of the plurality of large pores is greater than or equal to 1% of the total area of the collection layer and less than or equal to 30% thereof. This allows the porous composite to achieve a favorable efficiency of collecting particulate matter and to increase the accessible area between the particulate matter and the collection layer and thereby accelerate oxidation of the particulate matter collected by the porous composite.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: March 15, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Shogo Takeno, Kousuke Ujihara, Yunie Izumi
  • Patent number: 11230977
    Abstract: Method for optimizing the limitation of dust emissions from a gas turbine or combustion plant comprising a line for supplying liquid fuel oil, a line for generating fuel oil atomizing air, and a central controller, wherein: a first definition step, starting from a nominal temperature of the fuel oil and a nominal pressure ratio of the atomizing air of the fuel oil, and by controlling the injection of the soot inhibitor, of a nominal operating point corresponding to the maximum permissible level of emitted dust; a second step of controlling a first parameter, taken from the group of the fuel oil temperature and the pressure ratio of the fuel oil atomizing air, in order to reach another operating point; and a third step of controlling the soot inhibitor injection to achieve the maximum permissible level of emitted dust.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 25, 2022
    Assignee: General Electric Company
    Inventors: Matthieu Vierling, Pierre Montagne, Sven Catrin, Ezio Pena Saavedra, Mohamad-Maher Aboujaib
  • Patent number: 11208940
    Abstract: A process for manufacturing a muffler for an exhaust system of an internal combustion engine, provides a manufactured muffler with a muffler housing with a housing jacket (14) that is elongated in a direction of a housing longitudinal axis and with at least one housing bottom (26) carried on the housing jacket (14). The process includes the steps of providing the housing jacket (14) with a stop formation (50) in association with at least one housing bottom (26) to be carried on the housing jacket (14), providing the at least one housing bottom (26) to be carried on the housing jacket (14), and positioning the at least one housing bottom (26) on the housing jacket (14) such that the housing bottom (26) is in contact with the stop formation (50) associated with the housing bottom (26).
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: December 28, 2021
    Assignee: Purem GmbH
    Inventors: Carsten Bäumchen, Fritz Strobl
  • Patent number: 11181030
    Abstract: A method of manufacturing an on-board diagnostic (OBD) limit part and a method of testing to evaluate an OBD system. The method of manufacturing the OBD limit part includes introducing a contaminant to an selective catalytic reduction (SCR) catalyst and contacting the contaminant with the SCR catalyst for a selected period of time. The method of manufacturing utilizes a vessel, the contaminant, and the SCR catalyst. The OBD limit part is a combination of the contaminant and the SCR catalyst within the vessel. The method of testing to evaluate the OBD system includes collecting data related to an exhaust gas before and after the exhaust gas is exposed to the OBD limit part, collecting an indication provided by the OBD system, and comparing the data related to the exhaust gas and the indication provided by the OBD system. The method of testing to evaluate the OBD system utilizes a system that includes an exhaust gas source, a first and a second fluid path, the OBD limit part, and the OBD system.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: November 23, 2021
    Assignee: PACCAR Inc
    Inventors: Varun Ramesh, Isaac Stark
  • Patent number: 11156142
    Abstract: An exhaust system for an internal combustion engine includes an oxidation catalytic converter unit (12) with a first catalytic converter housing with a first housing axis (A1). An SCR catalytic converter unit (18) has a second catalytic converter housing (20), with a second housing axis (A2). A mixer housing (16) has an upstream connection area (24) adjoining a downstream end (26) of the first catalytic converter housing (14) and has a downstream connection area (28) adjoining an upstream end (30) of the second catalytic converter housing. A mixer (48) is carried in the mixer housing. A reactant release device (56) at the mixer housing releases reactant into a reactant-receiving duct (72) of the mixer. The mixer housing includes a first housing part (36) forming the upstream connection area (24) and a second housing part (38) forming the downstream connection area together with the first housing part.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: October 26, 2021
    Assignee: Purem GmbH
    Inventors: Enver Kurpejovic, Marc Palinkas, Thomas Wolf, Krishna Siva Prasad Reddy Yenugula, Ruben Hass
  • Patent number: 11156168
    Abstract: A gas turbine plant is provided with a gas turbine, a heating device, a decomposition gas line, and a decomposition gas compressor. The heating device heats ammonia and thermally decomposes the ammonia to convert the ammonia into decomposition gas including hydrogen gas and nitrogen gas. The decomposition gas line sends the decomposition gas PG from the heating device to the gas turbine. The decomposition gas compressor increases the pressure of the decomposition gas to a pressure equal to or higher than a feed pressure at which the decomposition gas is allowed to be fed to the gas turbine.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: October 26, 2021
    Assignee: MITSUBISHI POWER, LTD.
    Inventors: Masakazu Nose, Hideyuki Uechi, Satoshi Tanimura
  • Patent number: 11136912
    Abstract: A method for operating an exhaust gas purification apparatus (10) of a vehicle includes monitoring close-coupled lambda value (Ln) of a close-coupled catalytic converter apparatus (20), operating the close-coupled catalytic converter apparatus (20) with an excess of fuel, monitoring a non-close-coupled lambda value (Lf) of a non-close-coupled catalytic converter apparatus (30), and operating the non-close-coupled catalytic converter apparatus (30) in a stoichiometric method of operation.
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: October 5, 2021
    Inventors: Frank Schuerg, Sebastian Hemminger
  • Patent number: 10920693
    Abstract: A cylinder deactivation change apparatus including fuel supply parts supplying fuel into a first and second combustion chambers of a first and second cylinders, ignition parts igniting fuel-air mixture in the first and the second combustion chambers and a microprocessor. The microprocessor is configured to perform determining whether changing the operation mode is necessary, and controlling the fuel supply parts and ignition parts so as to ignite at first ignition timing before it is determined that changing the operation mode to the first mode is necessary, and so as to ignite at second ignition timing retarded in comparison with the first ignition timing and so as to supply the fuel into the first combustion chamber in a manner that causes a stratified charge combustion in the first combustion chamber, when it is determined that changing the operation mode to the first mode is necessary.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: February 16, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yuichi Masukake, Daisuke Shiomi, Chiho Chinda
  • Patent number: 10683791
    Abstract: An exhaust gas purification system has a first exhaust gas purification element, a second exhaust gas purification element, a first exhaust gas part flow duct, and a second exhaust gas part flow duct. The second exhaust gas purification element is arranged geometrically after the first exhaust gas purification element. The first exhaust gas part flow duct has a first exhaust gas passage area and the second exhaust gas part flow duct has a second exhaust gas passage area. The exhaust gas passage areas are aligned parallel to a projection plane and the first and second exhaust gas part flow ducts are arranged geometrically one after another. The two exhaust gas part flow ducts are arranged such that a partial flow channel axis that is orthogonal to the projection plane passes through the first and second exhaust gas passage areas.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: June 16, 2020
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Markus Pruss
  • Patent number: 10662853
    Abstract: An engine exhaust device includes: a first catalyst; a second catalyst; and a connecting member shaped into a tube and forming a part of the exhaust path, and connecting the first catalyst to the second catalyst. A downstream end surface of the first catalyst and an upstream end surface of the second catalyst form a dihedral angle within a range from 60 degrees to 120 degrees. A part of the upstream end surface of the second catalyst is close to and faces a part of a side surface of the first catalyst. On a cross-section including a central axis of the first catalyst and being parallel to a central axis of a second catalyst, a length of the part of the side surface of the first catalyst is longer than or equal to 10% and shorter than 50% of an entire length of the first catalyst.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: May 26, 2020
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Taku Kuramashi, Keishi Kitabatake, Tamotsu Takamure, Toshiaki Kamo
  • Patent number: 10662851
    Abstract: A pipe mixer for an aftertreatment system is described for mixing of a reductant and exhaust gas. The pipe mixer comprises a hollow body having a first end and a second end, the body surrounding a mixing channel; an injector mount positioned at the first end of the body; perforations provided on the body for entry of exhaust flow into the mixing channel; directional elements positioned on the body for directing exhaust flow towards the injector mount, the directional elements being positioned between the first end and the perforations wherein each directional element comprises an inlet formed on the body for entry of exhaust flow and a guide provided on an internal surface of the body, the guide having an outlet for exit of exhaust flow.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 26, 2020
    Assignee: Perkins Engines Company Limited
    Inventors: Srikanth Tummala, Xiao Cang
  • Patent number: 10619538
    Abstract: An engine exhaust device includes an exhaust pipe attached to a vehicle engine and a silencer connected to a downstream side of the exhaust pipe; the silencer includes a first partition wall which partitions an internal space of the silencer into at least two spaces in a first direction and a second partition wall which partitions one of the at least two spaces into two spaces in a second direction that crosses the first direction; another one of the at least two spaces is larger in capacity than each of the two spaces defined by the second partition wall; and a downstream end of the exhaust pipe is open in the another one of the at least two spaces.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: April 14, 2020
    Assignee: SUZUKI MOTOR CORPORATION
    Inventor: Akio Matsumoto
  • Patent number: 10612442
    Abstract: An exhaust gas treatment device includes an exhaust gas guide element which has an exhaust gas conduit. A first flow separation element is disposed in the exhaust gas conduit that divides the exhaust gas conduit into a first partial conduit and a second partial conduit. The first flow separation element has a first conduit area. A second flow separation element is disposed in the second partial conduit. The second flow separation element divides the second partial conduit into a first sub-conduit, a second sub-conduit, and a third sub-conduit. The second flow separation element has a second conduit area which is cylindrical or expands in a flow direction. The first conduit area of the first flow separation element expands along an injection direction of a reductant.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 7, 2020
    Assignee: Daimler AG
    Inventors: Thomas Boldt, Johannes Gerhard, Thomas Hermann, Michael Hochholzner, Sinisa Kontin, Tilmann Oestreich, Andreas Petry, Emmanuel Routier, Benedikt Stute
  • Patent number: 10563559
    Abstract: An exhaust gas aftertreatment system with an exhaust gas inlet, at least two exhaust gas aftertreatment elements, and a flow chamber. The exhaust gas inlet, the at least two exhaust gas aftertreatment elements, and the flow chamber are arranged relative to one another and fluidically connected together such that exhaust gas flowing through the exhaust gas inlet into the flow chamber can be distributed to the at least two exhaust gas aftertreatment elements. The exhaust gas passes through at least one first of the at least two exhaust gas aftertreatment elements along a first flow direction, and the exhaust gas passes through at least one second of the at least two exhaust gas aftertreatment elements along a second flow direction, wherein the first flow direction and the second flow direction are oriented at least diagonally to each other, preferably anti-parallel to each other.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: February 18, 2020
    Assignee: MTU FRIEDRICHSHAFEN GMBH
    Inventors: Mathias Bauknecht, Michael Engelhardt, Boban Maletic, Samuel Vogel
  • Patent number: 10557398
    Abstract: The present invention discloses an exhaust pipe structure for an internal combustion engine in which a tubular exhaust purifying catalyst device including an exhaust purifying catalyst is disposed in a vicinity of the internal combustion engine within an engine room. The exhaust pipe structure comprises an exhaust pipe main part which curves from a side of the internal combustion engine and extends towards an end of the exhaust purifying catalyst device in a center axis line direction of the exhaust purifying catalyst device and an exhaust pipe introduction part that connects the exhaust pipe main part and the end of the exhaust purifying catalyst device, and introduces exhaust gas from the exhaust pipe main part into the exhaust purifying catalyst device.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: February 11, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Kentarou Hikichi
  • Patent number: 10465581
    Abstract: A spray device 40 sprays a liquid oxidation catalyst 41 into an interior of an upstream small-diameter pipe 32 which is disposed upstream of an oxidation catalyst 25, so that the liquid oxidation catalyst 41 is supplied to particulate matters which have accumulated on an upstream end face 31 of the oxidation catalyst 25 and a diametrically expanded pipe 33 which is disposed upstream of the upstream end face 31 to thereby oxidize and remove the accumulated particulate matters by a catalytic action of the supplied liquid oxidation catalyst 41, whereby it becomes possible to remove the particulate matters which have accumulated on the upper end face 31 of the oxidation catalyst 25 which is disposed in an exhaust passageway and a portion of the exhaust passageway which is situated upstream of the upstream end face 31.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: November 5, 2019
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Daiji Nagaoka, Masashi Gabe
  • Patent number: 10363937
    Abstract: A control device for a vehicle includes a failure detector to detect failure in a cooling device to cool an internal combustion engine of the vehicle. An acceleration operation sensor is to detect an acceleration operation amount indicating a target acceleration. Circuitry is configured to control a power output from the internal combustion engine in accordance with the acceleration operation amount, control an air fuel ratio of air-fuel mixture in the internal combustion engine to be in a richer side with respect to a predetermined air fuel ratio if the acceleration operation amount exceeds a high load threshold, limit the power output from the internal combustion engine if the failure detector detects the failure, and prohibit the air fuel ratio from being controlled to be in the richer side even if the acceleration operation amount exceeds the high load threshold if the failure detector detects the failure.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: July 30, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Taku Yamazaki
  • Patent number: 10364764
    Abstract: Systems and methods for a turbocharged engine comprising an exhaust gas recirculation (EGR) valve and an EGR valve differential pressure sensor disposed in a low pressure EGR (LPEGR) system of the engine and a differential pressure (dP) valve that is distinct from a throttle valve and a dP valve outlet pressure sensor disposed in an induction system of the engine utilize a controller configured to, based on the sensed pressures, determine (i) a modeled pressure at the EGR pickup, (ii) a modeled pressure at outlet of an EGR cooler, (iii) a modeled pressure at an outlet of an air filter and (iv) a modeled pressure at the dP valve outlet, and control the dP valve and the EGR valve based on the modeled EGR pickup pressure, the modeled EGR cooler outlet pressure, the modeled air filter outlet pressure, and the modeled dP valve outlet pressure.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: July 30, 2019
    Assignee: FCA US LLC
    Inventors: Shu Wang, Ethan Bayer, William P Attard
  • Patent number: 10280825
    Abstract: A multi-cylinder engine exhaust structure disclosed herein includes: four branched exhaust pipes respectively communicating with four cylinders classified into two groups, each being comprised of two of the four cylinders with discontinuous exhaust strokes; two intermediate collecting pipes, each being formed by combining associated two of the four branched exhaust pipes respectively communicating with the two cylinders in an associated one of the two groups; a last collecting pipe formed by combining these intermediate collecting pipes; and an exhaust gas purifier coupled to an exhaust gas downstream end of the last collecting pipe.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: May 7, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Taku Kuramashi, Ryota Joya, Tomonori Nishida
  • Patent number: 10267206
    Abstract: In inline four cylinder internal combustion engine (1), exhaust ports for a #2 cylinder and a #3 cylinder merge inside cylinder head (3) and form an opening serving as a single collective exhaust port. Exhaust manifold (5) has individual exhaust pipes (6, 7) for #1 and #4 cylinders and collective exhaust pipe (8), and the leading ends of these three exhaust pipes (6, 7, 8) are connected to catalytic converter (11). Exhaust gas introduction angle (?2) of each of individual exhaust pipes (6, 7) is larger by 30-60 degrees than exhaust gas introduction angle (?1) of collective exhaust pipe (8). Consequently, flow velocity distribution and temperature distribution in a catalyst carrier become uniform.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: April 23, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takayuki Hamamoto, Takanobu Sugiyama, Hidehiro Fujita
  • Patent number: 10240507
    Abstract: In an in-line four-cylinder internal combustion engine, exhaust ports (2b, 2c) of cylinders #2 and #3 merge together inside a cylinder head and become open as one flat collective exhaust port (2bc). An exhaust manifold (5) includes separate individual exhaust pipes (6, 7) for cylinders #1 and #4 and a collective exhaust pipe (8) for cylinders #2 and #4. Tip ends of these three exhaust pipes are connected to a catalytic converter (11). An equivalent diameter of the collective exhaust port (2bc) is larger than equivalent diameters of the exhaust ports (2a, 2d) before merging. A short diameter of the collective exhaust port (2bc) is smaller than or equal to the equivalent diameters of the exhaust ports (2b, 2c).
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 26, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takanobu Sugiyama, Hidehiro Fujita, Takayuki Hamamoto, Yuta Kanashima
  • Patent number: 10184411
    Abstract: Rich control is performed to hold an air-fuel ratio of an exhaust gas discharged from an engine combustion chamber temporarily richer than the stoichiometric air-fuel ratio by injecting additional fuel into a cylinder in an expansion stroke or exhaust stroke while an exhaust gas recirculation rate is made lower than a base exhaust gas recirculation rate. A variable valve timing mechanism able to change an overlap period is provided. When ending rich control (ta2), the injection of additional fuel is stopped and the overlap period (OL) is increased from a base overlap period (OLB) and held there while an EGR rate (REGR) is kept lower than a base EGR rate (REGRB) and when a delay time (dt) elapses, the EGR rate and the overlap period are reset to the base EGR rate and the base overlap period.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 22, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Yoshito Nogi
  • Patent number: 10161278
    Abstract: A catalyst arrangement for use with a selective catalytic reduction system includes a frame and a plurality of catalyst elements coupled to the frame. The plurality of catalyst elements is arranged vertically among a plurality of vertical stations. The plurality of vertical stations is successively defined along a height of the catalyst arrangement. The catalyst elements of at least one of the vertical stations are arranged at a plurality of axial positions with respect to an axial direction of a flow of exhaust gases through the selective catalytic reduction system.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: December 25, 2018
    Assignee: General Electric Company
    Inventors: Rajesh Prabhakaran Saraswathi, Bradly Aaron Kippel
  • Patent number: 10030282
    Abstract: This ferritic stainless steel sheet contains, by mass %: C: 0.02% or less, N: 0.02% or less, Si: 0.05% to 0.80%, Mn: 0.05% to 1.00%, P: 0.04% or less, S: 0.01% or less, Cr: 12% to 20%, Cu: 0.80% to 1.50%; Ni: 1.0% or less, Mo: 0.01% to 2.00%, Nb: 0.30% to 1.00%, Ti: 0.01% to less than 0.25%, Al: 0.003% to 0.46%, V: 0.01% to less than 0.15%, and B: 0.0002% to 0.0050%, with a remainder of Fe and inevitable impurities, wherein the following formulae (1) and (2) are satisfied, and an average Cu concentration in an area from a surface to a depth of 200 nm is 3.00% or less, in the case of Mn<0.65%, 1.44×Si?Mn?0.05?0??(1), and in the case of Mn?0.65%, 1.10×Si+Mn?1.19?0??(2).
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 24, 2018
    Assignee: NIPPON STEEL & SUMIKIN STAINLESS STEEL CORPORATION
    Inventors: Atsutaka Hayashi, Yoshiharu Inoue, Nobuhiko Hiraide
  • Patent number: 9874131
    Abstract: A pump module includes: a pump that is installed at the inside of a storage tank in order to discharge a liquid that is stored at the inside of the tank to the outside of the tank; a flange that is coupled to one side of the tank in order to couple the pump to the tank; a heater that is located on the flange so as to enclose a lower portion of the pump; a cover that covers an upper portion of the pump in order to couple the heater to the flange; and a filter that is coupled to the flange so as to enclose the pump, the cover, and the heater and that filters the liquid that is supplied to the pump.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: January 23, 2018
    Assignees: Hyundai Motor Company, Hyundam Industrial Co., Ltd.
    Inventors: Bu Yeol Ryu, Pil Seon Choi, Chan Yo Jeon, Bu Hyeon Cho, Yong Taek Hwang
  • Patent number: 9809954
    Abstract: A bulldozer includes a blade, an engine, first and second exhaust treatment devices that treat exhaust from the engine, and an engine cover. The first exhaust treatment device is disposed in front of the engine and lower than a first upper surface of the engine. The second exhaust treatment device is disposed above the engine. The engine cover includes a second upper surface sloping forward and downward. The engine cover covers the engine and the first and second exhaust treatment devices. Longitudinal directions of the first and second exhaust treatment devices extend along a vehicle lateral direction. In a top view of the bulldozer, the second exhaust treatment device includes a portion overlapping the engine. As seen from a side of the bulldozer, a front edge of the second exhaust treatment device is positioned forward of a rear edge of the first exhaust treatment device.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 7, 2017
    Assignee: KOMATSU LTD.
    Inventor: Akira Uno
  • Patent number: 9803533
    Abstract: A tractor according to an embodiment of the present invention includes a front wheel, a rear wheel, a hood that covers an engine, and an exhaust gas treatment unit. The exhaust gas treatment unit is placed laterally outside right or left side of the hood and behind the front wheel, and purifies exhaust gas from the engine. A circular cylindrical heat shielding plate covers an outer circumferential surface of the exhaust gas treatment unit. A plurality of vent holes are formed in a rear surface of the heat shielding plate, and are not formed in a region that lies on a front surface of the heat shielding plate and faces the front wheel.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 31, 2017
    Assignee: ISEKI & CO., LTD.
    Inventors: Ryota Nagano, Shinya Yoshiki, Tatsuzo Murakami, Yoshitaka Takechi, Erina Tamura
  • Patent number: 9726059
    Abstract: An exhaust system includes at least one exhaust gas purification component, at least one exhaust line, at least one connecting device for connecting the exhaust system to an internal combustion engine of a motor vehicle and at least one fastening element for additionally fastening the exhaust system to the motor vehicle. The purification component can oscillate at a first resonance frequency range of less than 150 Hz in a fastened state. The purification component can oscillate due to vibrations of the engine at least when the engine is started or switched off. This, in particular, allows ash residues to be removed from a purification component during starting of the motor vehicle, so that maintenance expense for the purification component is reduced and effective operation thereof is possible over the long term. A motor vehicle having an exhaust system and a method for operating the motor vehicle are also provided.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: August 8, 2017
    Assignee: EMITEC Gesellschaft fuer Emissionstechnologie mbH
    Inventors: Wolfgang Maus, Rolf Brueck, Klaus Mueller-Haas
  • Patent number: 9708949
    Abstract: An exhaust aftertreatment system for purifying exhaust gases from a compression-ignition engine includes a first exhaust aftertreatment device including an oxidation catalyst and a particulate filter element fluidly coupled to an exhaust outlet of the engine. A second exhaust aftertreatment device includes an ammonia-selective catalytic reduction catalyst fluidly coupled to a downstream outlet of the first exhaust aftertreatment device. A reductant injection system is configured to inject urea reductant into the exhaust gas feedstream between the first exhaust aftertreatment device and the second exhaust aftertreatment device.
    Type: Grant
    Filed: June 14, 2014
    Date of Patent: July 18, 2017
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gongshin Qi, John T. Johnson, Wei Li
  • Patent number: 9683475
    Abstract: To elongate an exhaust tail pipe wherein a muffler is covered by a rear cowl. An exhaust structure of a vehicle including a rear cowl covering a vehicle rear portion, a rear bank-muffler including a first and second expansion chamber partitioned by a partition, a first and second connecting pipe connecting the expansion chambers, and a tail pipe configured to discharge exhaust air from the rear bank-muffler. The rear bank-muffler is covered by the rear cowl, wherein outlines of the rear bank-muffler and the rear cowl are each formed such that the width decreases toward the vehicle rear. The tail pipe, the first connecting pipe, and the second connecting pipe are provided so as to penetrate the partition. A position where the tail pipe penetrates the partition and positions where the first connecting pipe and second connecting pipe penetrate the partition are offset from each other in the vertical direction.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 20, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Katsuaki Shibuki, Masaya Yazaki, Satoru Nojima
  • Patent number: 9664101
    Abstract: An exhaust treatment system includes first and second exhaust conduits positioned on opposite ends of an exhaust treatment device. The exhaust treatment device includes a housing having a first outer diameter at a first end and a different second outer diameter at a second end. A clamp includes an inner surface engaging both the first exhaust conduit and the exhaust treatment device when the exhaust treatment device is positioned with its first end adjacent to the first exhaust conduit. The inner surface of the clamp is spaced apart from one of the housing and the exhaust treatment device when the second end of the exhaust treatment device is adjacent the first exhaust conduit.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: May 30, 2017
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Michael Golin, Rick Thompson
  • Patent number: 9598999
    Abstract: An exhaust treatment device is disclosed. The exhaust treatment device has a compact configuration that includes integrated reactant dosing, reactant mixing and contaminant removal/treatment. The mixing can be achieved at least in part by a swirl structure and contaminant removal can include NOx reduction.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: March 21, 2017
    Assignee: Donaldson Company, Inc.
    Inventors: Korneel De Rudder, Stephane Le Merdy, Bart Schellens, Nic Degelin, Corine Chauvin, Jeffrey Curtis Gillen
  • Patent number: 9587550
    Abstract: A component of an exhaust system for a combustion engine, particularly of a motor vehicle, has a hollow jacket at least partially surrounding the component. An intermediate space is surrounded by the walls of the hollow jacket and is closable in a pressure-tight manner. The intermediate space is fluidically connected to a vacuum generating device via a vacuum connection line and via a vacuum connection point of the component. With the vacuum generating device, a vacuum can be generated in the intermediate space. Through arrangement of a filler material, such as a support structure and/or of a fiber material and/or of a foam, in the intermediate space the stability of the hollow jacket can be improved.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: March 7, 2017
    Assignee: Eberspächer Exhaust Technology GMBH & CO. KG
    Inventor: Gerd Gaiser
  • Patent number: 9573459
    Abstract: An exhaust pipe cover structure for a saddle-ride type vehicle allows an exhaust pipe cover to be easily positioned and attached even in the case of attaching the exhaust pipe cover to an exhaust pipe attached to an engine. Boss portions each having an internal thread through which an exhaust pipe cover is fastened are provided on a lateral surface of an exhaust pipe. Hooking holes capable of being hooked on the boss portions with play are integrally provided on the inner side of the exhaust pipe cover. In a state where the hooking portions are hooked on the boss portions, part of the boss portions is viewable through attaching holes of the exhaust pipe cover.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: February 21, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Nobuyuki Shimomura
  • Patent number: 9517457
    Abstract: Systems, apparatus and methods are disclosed for reducing the amount of nitrous oxide (N2O) produced in a selective catalytic reductant (SCR) catalyst in an exhaust aftertreatment system. The SCR catalysts are arranged to reduce the amount of N2O produced during NOx reduction while not adversely affecting NOx conversion.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: December 13, 2016
    Assignee: Cummins Inc.
    Inventors: Krishna Kamasamudram, Neal W. Currier, Ashok Kumar
  • Patent number: 9505301
    Abstract: An engine device in which a first case and a second case can be installed in a compact manner while preventing a decrease of temperature of the first case and the second case due to cooling air for an engine. The engine device is equipped with the first case for removing particulate matter in exhaust gas of the engine, and the second case for removing nitrogen oxide in the exhaust gas of the engine. The first case and the second case are disposed on the upper surface side of the engine at a position higher than an air flow path of a cooling fan of the engine. The second case is disposed at a position higher than the first case.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: November 29, 2016
    Assignee: Yanmar Co., Ltd.
    Inventor: Yoshiyuki Sandou
  • Patent number: 9366174
    Abstract: A safety device for operating a catalytic converter, including: a heat screen installed substantially on a portion of an outer wall of the catalytic converter, and including an opening through which a measuring device attached onto the catalytic converter is to pass, the measuring device including a substantially cylindrical base configured to engage with the catalytic converter; a safety device to be arranged on the heat screen, the safety device including a plate including a circular opening having a diameter that is greater than a diameter of a base, the opening being delimited by a lip; and a device for attaching the plate to the heat screen such that the lip surrounds the base with a minimum clearance.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: June 14, 2016
    Assignee: RENAULT s.a.s.
    Inventors: Pascal Hottebart, Jean-Luc Gateau
  • Patent number: 9341096
    Abstract: An exhaust gas treatment device includes at least a housing and a second exhaust gas treatment unit which is disposed at a distance from the housing and extends into the housing. The housing has an opening that is disposed laterally relative to the second exhaust gas treatment unit and extends laterally at least across 50% of the second exhaust gas treatment unit which extends into the housing. A motor vehicle having the exhaust gas treatment device is also provided.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: May 17, 2016
    Assignee: Emitec Gesellschaft fuer Emissiontechnologie mbH
    Inventors: Rolf Brueck, Conny Johansson, Mats Laurell
  • Patent number: 9227677
    Abstract: An underbody trim for the rear-end region of a motor vehicle conceals a rear exhaust muffler. For the purposes of cooling the rear exhaust muffler, an air inlet is provided in the underbody trim. The air inlet is arranged in a region in which, while the motor vehicle is traveling, a pressure is higher at the underside of the underbody trim than the region of the floor panel arranged thereabove. Cooling ambient air is thus conducted into the region of the rear exhaust muffler with low flow losses.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: January 5, 2016
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Mats Stefan Hillstroem, Ioannis Dimitriou, Jochen Mayer, Stefan Meszaros, Christian Seitz
  • Patent number: 9228477
    Abstract: An exhaust system, for a vehicle driven by an internal combustion engine, has a system for removing condensate (141) that includes a first line section (110) for fluid connection with exhaust gas (160), at least one second line section (120) for fluid connection with exhaust gas (160), and at least one suction line (130; 131; 132; 136; 137; 138). The suction line (130; 131; 132; 136; 137; 138) is disposed between the bottom (124) of the at least one second line section (120) and the first line section (110), and includes an opening (135) configured to be passed over by exhaust gas (160) passing through the first line section (110).
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 5, 2016
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventors: Peter Wink, Michael Pommerer
  • Patent number: 9222392
    Abstract: The present invention relates to an exhaust gas treatment device for an exhaust system of a combustion engine, more preferably of a motor vehicle with a housing comprising a jacket and an outlet funnel, with at least one exhaust gas treatment element which is arranged in the jacket and which via a support ring is axially supported on the housing, wherein the outlet funnel comprises an outer funnel and an inner funnel. A simplified design is obtained if the outer funnel at an inner end facing the jacket is connected to the jacket in a fixed manner and at an outer end facing away from the jacket is connected in a fixed manner to the inner funnel, and if between the inner funnel and the outer funnel an insulation space circumferentially running in circumferential direction is formed and the inner funnel at an inner end facing the jacket carries the support ring and relative to the outer funnel is at least axially loose.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 29, 2015
    Assignee: Eberspaecher Exhaust Technology GmbH & Co. KG
    Inventors: Roland Schwarz, Johannes Grupp, Marco Wenz
  • Patent number: 9217348
    Abstract: An exhaust gas purification device for purifying exhaust gas flowing through an exhaust gas channel of an engine includes fins installed in the exhaust gas channel to guide the exhaust gas to generate a swirling flow; and an injection device configured to inject a reducing agent to the swirling flow of the exhaust gas. The fins are expanded and opened toward a downstream side of an injection direction of the reducing agent so as to surround an injection region of the reducing agent.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: December 22, 2015
    Assignee: Hino Motors, Ltd.
    Inventor: Masahiro Kimura
  • Patent number: 9169757
    Abstract: A mixer/evaporator or an exhaust system (5) of an internal combustion engine (1), includes a carrier (20) surrounding, in a circumferential direction, a flat cross section of a mixing/evaporating device (12), through which exhaust gases flow and which extends at a right angle to the axial direction (17). The carrier has opposite side walls, wherein short side walls (23, 24) connect each long side walls (21, 22) to one another. Guide blades (25) project in a direction of the respective opposite long side wall, are set at an angle in relation to the axial direction and are arranged at one of the long side walls at least one axial end (26, 27). An axial end of the first long side walls is offset in the axial direction in relation to the axial end of the second long side wall on the same side of the mixing/evaporating device.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: October 27, 2015
    Assignee: Eberspächer Exhaust Technology GmbH & Co. KG
    Inventor: Silvia Calvo
  • Patent number: 9162182
    Abstract: An exhaust-gas cleaning device for an internal combustion engine has a catalytic converter arrangement. The catalytic converter arrangement includes, along the flow direction, a plurality of catalytically active regions which are, in particular, independent of one another. A heat dissipation device includes a heat absorbing device and one heat sink. The heat absorbing device is provided between at least two catalytically active regions. The heat absorbing device is connected to the heat sink. The exhaust-gas cleaning device includes a plurality of catalytic converter arrangements, an, in particular tubular, inner housing with a housing cover, and an outer housing which encloses the inner housing. The inner housing has a longitudinal axis, and the catalytic converter arrangements are arranged separately from one another on the housing cover of the inner housing.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: October 20, 2015
    Assignee: GE JENBACHER GMBH & CO OG
    Inventor: Friedrich Gruber
  • Patent number: 9140155
    Abstract: A modular exhaust system is disclosed for treating the exhaust from a fossil fuel powered prime mover; the exhaust system includes bricks, inserts placed inside of the bricks and funnels to direct exhaust through various flow paths in order to treat the exhaust.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: September 22, 2015
    Assignee: Caterpillar Inc.
    Inventors: Mary Jill Trumper, Christopher A. Willey, Kris E. Seitz, Andrew D. Hill, Thomas N. Brooks, Jr., Troy A. Shawgo
  • Patent number: 9114363
    Abstract: A catalyst system may include a three-way catalyst that may receive exhaust gases from an engine and convert the exhaust gases to first converted exhaust gases. An ammonia slip catalyst may receive the first converted exhaust gases and convert the first converted exhaust gases to second converted exhaust gases. A hydrocarbon oxidation catalyst may receive the second converted exhaust gases and convert the second converted exhaust gases to third converted exhaust gases.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Assignee: GENERAL ELECTRIC COMPANY
    Inventor: Maruthi N. Devarakonda
  • Patent number: 9109483
    Abstract: An exhaust system for an internal combustion engine, having a first exhaust tract and a second exhaust tract, wherein a first silencer device is arranged in an end section of the first exhaust tract and a second silencer device is arranged in an end section of the second exhaust tract, and the two exhaust tracts are connected in an inter-communicating manner by a crosstalk point, and, in the first or second exhaust tract downstream of the crosstalk point, there is provided a valve for the selective closure of the respective exhaust tract, wherein a distance between the valve and the crosstalk point is dimensioned such that, at a particular rotational speed of the engine, an exhaust line path between the valve and the crosstalk point serves as a quarter lambda resonator such that, at the rotational speed of the internal combustion engine, disturbing noises of the exhaust system are reduced.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: August 18, 2015
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventor: Joerg Winkel
  • Patent number: 9061245
    Abstract: An exhaust gas aftertreatment system, in particular for V-type diesel engines, is provided. The system includes, disposed in the exhaust line of the engine in the direction of the exhaust gas flow, a first SCR stage, a catalytically activated particulate filter (cDPF), a second SCR stage, and an ammonia slip catalyst (ASC). A method for purifying diesel engine exhaust gases containing hydrocarbons, carbon monoxide, soot particles, and nitrogen oxides consisting of NO and NO2 is also provided.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: June 23, 2015
    Assignee: Deutz Aktiengesellschaft
    Inventors: Meike Wittrock, Wolfgang Beberdick